CN1394046A - Method for distributed processing to control module of layer-2 tunnel protocol - Google Patents
Method for distributed processing to control module of layer-2 tunnel protocol Download PDFInfo
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- CN1394046A CN1394046A CN01119829A CN01119829A CN1394046A CN 1394046 A CN1394046 A CN 1394046A CN 01119829 A CN01119829 A CN 01119829A CN 01119829 A CN01119829 A CN 01119829A CN 1394046 A CN1394046 A CN 1394046A
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Abstract
The invention relates to the realization method for carrying out the distribution processing the control module of the two layers channel protocol under distributed framework. The method includes following steps. The main control device is pointed in the overall system to undertake the configuration management. The configuration information of the users is stored on the said main control device and all other devices undertake the specific data transferring process in the system. When all devices receive the connection request of users from the two layers channel protocol, each device carriers out by itself all relevant control process independently based on the configuration information stored. With the configuration information being modified by users, the main control device informs other devices through broadcast mode.
Description
The present invention relates to the implementation method of the Layer 2 Tunneling Protocol L2TP among a kind of Virtual Private Network VPN (Virtual Private Networks), exactly, relate to a kind of implementation method of under Distributed Architecture, the control module of Layer 2 Tunneling Protocol L2TP being carried out distribution process, belong to the packet switching system technical field in the transmission of digital information.
Layer 2 Tunneling Protocol L2TP (Layer Two Tunneling Protocol) is 2 layers of tunnel transmission consensus standard that IETF formulates.The tunnel terminal device of L2TP is called L2TP Access Concentrator LAC (L2TPaccess concentrator) and L2TP Network Server LNS (L2TP network server) respectively, wherein the former is L2TP user's a concentrating equipment, and the latter then is the client server as L2TP.L2TP is the application layer protocol on the User Datagram Protoco (UDP) UDP (User Datagram Protocol), can realize the purpose of tunnel transmission by the message (can encapsulate three-tier messages such as IP, IPX in this PPP message) of encapsulation point end-to-end protocol (EEP) PPP (Point to Point Protocol).Utilize the two layer tunnel of L2TP to encapsulate the function that characteristic can realize Virtual Private Network VPN.
Under Distributed Architecture (for example GGSN60 type product of the general packet radio service gprs of Huawei Company (GeneralPacket Radio Service)), if all control and treatment (comprising: control messages and control message) of Layer 2 Tunneling Protocol L2TP are all transferred to a block system appointed equipment (for example master control borad of GGSN60) to be handled, so, when this piece designated equipment is busier, will inevitably influence the handling property and the corresponding time of this equipment and whole system.
In addition, because this block device will focus on control messages and the control message of all L2TP, so also need in the whole life span in session and tunnel, preserve the information in session and tunnel, these informational needs take a large amount of internal memories, but do not have what use in the whole process of transfer of data; If the memory source of this block device is limited, that will have influence on the L2TP number of users that whole system is supported.
Because control focuses on, the communication of control data between being specifically responsible for the equipment (as the IO plate in the GGSN60 model device) of data transmission and processing, this block device and other will take place.The existence of these communication informations not only can impact the communication bandwidth of each equipment in the whole system, and, if consider the abnormal conditions of appearance in the communication, also can bring influence to the complexity of systems soft ware.
The purpose of this invention is to provide a kind of implementation method of under Distributed Architecture, Layer 2 Tunneling Protocol L2TP control module being carried out distribution process, use this method can solve the block device that above-mentioned all control and treatment with Layer 2 Tunneling Protocol L2TP all transfer to system's appointment effectively and focus on the many disadvantages of being brought.
The object of the present invention is achieved like this: a kind of implementation method of the Layer 2 Tunneling Protocol control module being carried out distribution process under Distributed Architecture, it is characterized in that: include the following step: at first specify a main control device to bear configuration management by whole system, every other in this piece main control device and system born the configuration information of all preserving the user on the equipment of concrete data transmission and processing; And all each equipment independently carry out all corresponding control and treatment by each equipment according to the configuration information of preserving on this equipment voluntarily behind the connection request that receives the Layer 2 Tunneling Protocol user; Behind the user's modification configuration information, main control device is then notified other each equipment by broadcast mode with this user's modification information.
Above-mentioned each equipment includes following content according to all corresponding control and treatment that the configuration information of preserving on this equipment independently carries out voluntarily: distribute and preserve tunnel and the required memory headroom of session; The foundation in tunnel, dismounting and maintenance; The foundation of session, dismounting, and transmission data.
The above-mentioned main control device of bearing configuration management can be arranged among the Layer 2 Tunneling Protocol L2TP Network Server LNS in this system, also can be arranged among the Layer 2 Tunneling Protocol L2TP Access Concentrator LAC in this system.
Use method of the present invention, after the realization of the control and treatment under Distributed Architecture distribution process, will bring following benefit:
1, increase the L2TP number of users that whole system is supported: the number of users of whole system support no longer needs to consider the memory size of main control device, has broken through the bottleneck of main control device memory size.By each other equipment bases ability separately, distribute the required memory headroom of tunnel descriptor and conversation description symbol, can cause stack effect, thereby support more number of users.
2, improve the internal memory service efficiency: identical information (comprising information such as tunnel descriptor and conversation description symbol) does not need to repeat to preserve on main control device and other equipment again.
3, reduce system complexity: no longer need be between main control device and other equipment the process information of transmitting control message or control message; And because control and treatment all is to be carried out voluntarily by each equipment, master control borad just no longer needs the related software module of Hot Spare L2TP, and the system configuration trend is simplified.
4, save communication bandwidth: when control message processing and control message, no longer need between main control device and other each equipment, communicate.
5, improve the disposal ability of whole system: after the distribution process, each equipment carries out all control and treatment separately, no longer relies on the disposal ability of main control device.
Describe method step of the present invention, feature and effect in detail below in conjunction with drawings and Examples:
Fig. 1 is that the Layer 2 Tunneling Protocol L2TP that uses now carries out central controlled implementation method schematic diagram.
The implementation method schematic diagram that Fig. 2 is to use method of the present invention that Layer 2 Tunneling Protocol L2TP is distributed and controls.
The implementation method schematic diagram that Fig. 3 is to use the embodiment GGSN60 model device of method of the present invention that Layer 2 Tunneling Protocol L2TP is distributed and controls.
Referring to Fig. 2, the present invention is a kind of implementation method of the Layer 2 Tunneling Protocol control module being carried out distribution process under Distributed Architecture, it includes the following step: at first specify a main control device A to bear configuration management by whole system, every other in this piece main control device A and system bear concrete data transmission and processing each equipment (as the equipment among the figure 1 ... equipment N) all preserves user's configuration information on; And all each equipment independently carry out all corresponding control and treatment by each equipment according to the configuration information of preserving on this equipment voluntarily behind the connection request that receives the Layer 2 Tunneling Protocol user; All corresponding control and treatment that these independently carry out include following content: distribute and preserve tunnel and the required memory headroom of session; The foundation in tunnel, dismounting and maintenance; The foundation of session, dismounting, and the transmission data etc.And behind the user's modification configuration information, main control device A then notifies other each equipment by broadcast mode with this user's modification information.The described main control device A that bears configuration management can be arranged among the L2TP Network Server LNS in this system (as shown in Figure 2), also can be arranged on (referring to shown in Figure 3) among the L2TP Access Concentrator LAC in this system.
In the view of user and system maintenance personnel, the control and treatment that the present invention adopts with all be issued to that each equipment carries out and originally all control and treatment do not have what difference by main control device.
Actual analysis can find, concentrates when carrying out in control and treatment originally, only needs a tunnel just can carry session connections all between them between pair of L AC and LNS, as shown in Figure 1.At the LAC end (being illustrated as A8010 NAS equipment) that is connected with VPN user by the PSTN/ISDN network, be positioned at ISP and public network part, between the router LNS of itself and intranet, in the INTERNET network, only be provided with a tunnel, just can carry session connections all between them.And after using the present invention,, just can not carry all session connections by a tunnel because control and treatment is distributed carrying out.Because each treatment facility all works alone in the whole system, they can not get the information that other equipment have been created the identical tunnel of destination address.If they find that this equipment does not arrive the existing tunnel of opposite end, tunnel, will oneself begin to create one, this point is that the L2TP agreement allows.Showed among the figure between the router (LNS end) of A8010NAS equipment (LAC end) and intranet and be provided with two tunnels that arrive equipment 1 and equipment N respectively.
The present invention has been that the model of the Gateway GPRS Support Node GGSN that provides of general packet radio service gprs/Wideband Code Division Multiple Access (WCDMA) WCDMA system is to implement test in the GGSN60 equipment in applicant-Huawei Company, referring to this embodiment GGSN60 model device shown in Figure 3 to the distribute implementation method schematic diagram of control of Layer 2 Tunneling Protocol L2TP.This GGSN60 equipment provides the LAC end function of describing in the L2TP agreement.Master control borad B among the GGSN60 is responsible for the processing to the L2TP configuration order of attendant's input, and with these download of information to each interface board (as the interface board among the figure 1 ... interface board N) on.Each interface board then utilizes the configuration information of preserving on its this plate, accepts user's connection request, and sets up the tunnel connection and the session connection of the router that plays the LNS end between each interface board independently.Above-mentioned enforcement test is quite successful, has realized goal of the invention fully.
Claims (3)
1, a kind of implementation method of under Distributed Architecture, the Layer 2 Tunneling Protocol control module being carried out distribution process, it is characterized in that: include the following step: at first specify a main control device to bear configuration management by whole system, every other in this piece main control device and system born the configuration information of all preserving the user on the equipment of concrete data transmission and processing; And all each equipment independently carry out all corresponding control and treatment by each equipment according to the configuration information of preserving on this equipment voluntarily behind the connection request that receives the Layer 2 Tunneling Protocol user; Behind the user's modification configuration information, main control device is then notified other each equipment by broadcast mode with this user's modification information.
2, implementation method of under Distributed Architecture, the Layer 2 Tunneling Protocol control module being carried out distribution process as claimed in claim 1, it is characterized in that: above-mentioned each equipment includes following content according to all corresponding control and treatment that the configuration information of preserving on this equipment independently carries out voluntarily: distribute and preserve tunnel and the required memory headroom of session; The foundation in tunnel, dismounting and maintenance; The foundation of session, dismounting, and transmission data.
3, implementation method of under Distributed Architecture, the Layer 2 Tunneling Protocol control module being carried out distribution process as claimed in claim 1, it is characterized in that: the above-mentioned main control device of bearing configuration management can be arranged among the Layer 2 Tunneling Protocol L2TP Network Server LNS in this system, also can be arranged among the Layer 2 Tunneling Protocol L2TP Access Concentrator LAC in this system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01119829XA CN1152533C (en) | 2001-06-29 | 2001-06-29 | Method for distributed processing to control module of layer-2 tunnel protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01119829XA CN1152533C (en) | 2001-06-29 | 2001-06-29 | Method for distributed processing to control module of layer-2 tunnel protocol |
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| Publication Number | Publication Date |
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| CN1394046A true CN1394046A (en) | 2003-01-29 |
| CN1152533C CN1152533C (en) | 2004-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB01119829XA Expired - Fee Related CN1152533C (en) | 2001-06-29 | 2001-06-29 | Method for distributed processing to control module of layer-2 tunnel protocol |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1956353B (en) * | 2005-10-28 | 2011-07-20 | 华为技术有限公司 | Method of flow management based on tunnel and radio access relay system |
| CN106790164A (en) * | 2016-12-29 | 2017-05-31 | 杭州迪普科技股份有限公司 | The password amending method and device of L2TP |
-
2001
- 2001-06-29 CN CNB01119829XA patent/CN1152533C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1956353B (en) * | 2005-10-28 | 2011-07-20 | 华为技术有限公司 | Method of flow management based on tunnel and radio access relay system |
| CN106790164A (en) * | 2016-12-29 | 2017-05-31 | 杭州迪普科技股份有限公司 | The password amending method and device of L2TP |
| CN106790164B (en) * | 2016-12-29 | 2020-05-12 | 杭州迪普科技股份有限公司 | L2TP password modification method and device |
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| Publication number | Publication date |
|---|---|
| CN1152533C (en) | 2004-06-02 |
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